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20130126
20130126
STATION
CNN 1
CNNW 1
KCSM (PBS) 1
LANGUAGE
Search Results 0 to 2 of about 3 (some duplicates have been removed)
PBS
Jan 25, 2013 7:00pm PST
fire, ntsb chair says there is evidence of short circuiting. when high temperatures trigger an uncontrollable reaction. >> the photo on the right and you can see the cells outlined in red, show the eight damaged cells of our battery that we're investigating in the lab. >> reporter: hersman says among the battery's eight cells, three were heavily damaged. they are trying to figure out that those are different than others. >> we're working very hard to determine what happened and why it happened. we'll look at failure scenarios and coordinating with colleagues around the world. >> reporter: aviation authorities in japan are also looking at the battery problem. they have been examining the charred front battery from all nippon airways 787. officials detected smoke coming from it last week. the crew made an emergency landing in western japan. investigators say the flight data recorder gives no indication that excessive volt age ran through the battery. but they are not ruling out the possibility of an overcharge. >> translator: we do not see evidence of overcharging. but it is t
CNN
Jan 26, 2013 7:00am PST
. >> reporter: piece by piece inside this ntsb lab in washington, analysts are dissecting the charred battery which caught on fire in a boeing 787 dreamliner earlier this month in boston. >> we know that the lithium ion battery experienced a thermal runaway. we no that there were short circuits, and we know that there was a fire. >> reporter: the faa gave special permission to boeing, allowing the use of these light weight batteries only if safety measures were installed to prevent overheating. >> we do not expect to see fire events on board aircrafts. there are multiple systems to protect against a battery event like this. those systems did not work as intended. we need to understand why. >> reporter: the investigation was launched after two 787s this month experienced issues surrounding the jet's unique use of lithium ion batteries. fais battery behind the wings of a japan airlines 787 exploded and caught fire while on the ground in boston. initial tests rule out excess voltage and overcharging. another battery problem, this one near the cockpit of an all nippon airways dreamliner led to sm
Search Results 0 to 2 of about 3 (some duplicates have been removed)